Home / 3,612.15-5,419.58-1,422.41

Finding the Fourth Proportional to 3,612.15, 5,419.58 and 1,422.41

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Solution

The fourth proportional to 3,612.15, 5,419.58 and 1,422.41 is: 2,134.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,612.15 : 5,419.58 = 1,422.41 : x
  2. Step 2: Convert to fraction form
    3,612.15/5,419.58 = 1,422.41/x
  3. Step 3: Cross multiply
    3,612.15x = 5,419.58 × 1,422.41
  4. Step 4: Simplify right side
    3,612.15x = 7,708,830.58
  5. Step 5: Solve for x
    x = 7,708,830.58/3,612.15
  6. Step 6: Final answer
    x = 2,134.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.